public override ValidationResult Validate(object value, CultureInfo cultureInfo)
{
try
{
if (value == null)
{
return(new ValidationResult(false, "You must enter a non-empty value"));
}
if (value is BindingGroup) //Since our XAML has ValidationStep="UpdatedValue" />, then our value is now of type BindingExpression, not the normal string that we expected.
{
BindingGroup bg = value as BindingGroup;
//CiresonTimerActivity ta = bg.Owner.
StackPanel sp = bg.Owner as StackPanel;
CiresonTimerActivityViewModel taViewModel = sp.DataContext as CiresonTimerActivityViewModel;
string strError = null;
if (taViewModel.HasValidDateInfoEntered(out strError))
{
return(ValidationResult.ValidResult);
}
else
{
return(new ValidationResult(false, strError));
}
}
return(new ValidationResult(false, "Was not expecting this obejct here..."));
}
catch
{
return(new ValidationResult(false, "You must make a selection and enter a value"));
}
}
public void UserControl_DataContextChanged(object sender, DependencyPropertyChangedEventArgs e)
{
//Our datacontext likes to change after the form has been loaded. Refresh some stuff.
Console.WriteLine("UserControl_DataContextChanged"); //TODO: delete me.
if (this.DataContext == null)
{
return;
}
if (this.DataContext is IDataItem == false && this.DataContext is EnterpriseManagementObject == false && this.DataContext is EnterpriseManagementObjectProjection == false)
{
return;
}
this.IsEnabled = false;
//SCSM will eventually load the DataContext as an IDataItem. This can't really be changed, since SCSM requires an IDataItem when pressing the OK or Apply buttons.
//Set the dataitem from the DataContext
if (this.DataContext is IDataItem)
{
var idataItem = this.DataContext as IDataItem;
//If this is a new item, then double check and make sure that our workitem ID has a prefix.
if ((bool)idataItem["$IsNew$"] == true)
{
var strPrefix = Microsoft.EnterpriseManagement.UI.Extensions.Shared.ConsoleContextHelper.Instance.GetActivityPrefix(idataItem);
if (strPrefix != null && strPrefix.Length > 0 && idataItem["Id"].ToString().StartsWith(strPrefix) == false)
{
//it's a brand new WI? Add hte prefix.
idataItem["Id"] = strPrefix + idataItem["Id"];
}
}
//Merge this form with the instance, using our full type projection
//ConsoleContextHelper.Instance.FetchAndMergeSubProjection(idataItem, guid_notificationActivityFullProjection); //Obsolete
Microsoft.EnterpriseManagement.UI.Extensions.Shared.ConsoleContextHelper.Instance.FetchAndMergeSubProjection(idataItem, Constants.guid_Projection_CiresonTimerActivity_FullProjection);
//We also have to load our viewmodel with other properties.
activityViewModel = new CiresonTimerActivityViewModel(idataItem, IsTemplateMode());
paneltestconfirmation.Visibility = Visibility.Hidden;
}
else if (this.DataContext is EnterpriseManagementObject)
{
var emoActivity = this.DataContext as EnterpriseManagementObject; //Set this globally here.
activityViewModel = new CiresonTimerActivityViewModel(emoActivity, IsTemplateMode()); //Also set this globally here.
paneltestconfirmation.Visibility = Visibility.Visible;
}
else if (this.DataContext is EnterpriseManagementObjectProjection)
{
throw new NotImplementedException("Code for EnterpriseManagementObject Projection not implemented yet");
}
//Update the datacontext with our new viewmodel, but in a different thread.
Task.Factory.StartNew(UpdateDataContextFromViewModel); //UpdateViewModelFromScsmObject(naViewModel); //Calling this here without a task would not be from a different thread, and we would see no change.
//this.DataContext = naViewModel; //Removes the iDataItem or EMO or EMOP and replaces it with our viewModel. Doesn't work within this method.
}